Full Idea
Structuralism in the 1960s was a set of theories which explained human phenomena in terms of underlying unconscious structures, rather than the lived experience described by Phenomenology.
Gist of Idea
Structuralism describes human phenomena in terms of unconscious structures
Source
Gary Gutting (Foucault: a very short introduction [2005], 6)
Book Reference
Gutting,Gary: 'Foucault' [OUP 2005], p.61
A Reaction
Hence the interest in Freud and Marx, and Foucault's interest in history, each offering to unmask what is hidden in consciousness. The unmasking is a basically Kantian project. Cf. Frege's hatred of 'psychologism'.